Handbook of Small Animal Regional Anesthesia and Analgesia Techniques Handbook of Small Animal Regional Anesthesia and Analgesia Techniques Phillip Lerche BVSc PhD DipACVAA Associate Professor – Clinical Anesthesiology and Pain Management Department of Veterinary Clinical Sciences The Ohio State University College of Veterinary Medicine Columbus, Ohio, USA Turi K. Aarnes DVM MS DipACVAA Associate Professor – Clinical Anesthesiology and Pain Management Department of Veterinary Clinical Sciences The Ohio State University College of Veterinary Medicine Columbus, Ohio, USA Gwen Covey-Crump BVetMed CertVA DipECVAA MRCVS Specialist in Veterinary Anaesthesia and Analgesia Clinical Teacher Langford Veterinary Services University of Bristol Bristol, UK Fernando Martinez Taboada LV CertVA DipECVAA MRCVS Specialist in Veterinary Anaesthesia and Analgesia The Veterinary Teaching Hospital Faculty of Veterinary Science The University of Sydney Sydney, Australia This edition fi rst published 2016 © 2016 by John Wiley & Sons, Ltd Registered offi ce: John Wiley & Sons, Ltd, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, UK Editorial offi ces: 9600 Garsington Road, Oxford, OX4 2DQ, UK The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, UK 1606 Golden Aspen Drive, Suites 103 and 104, Ames, Iowa 50010, USA For details of our global editorial offi ces, for customer services and for information about how to apply for permission to reuse the copyright material in this book please see our website at www.wiley.com/wiley-blackwell The right of the author to be identifi ed as the author of this work has been asserted in accordance with the UK Copyright, Designs and Patents Act 1988. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by the UK Copyright, Designs and Patents Act 1988, without the prior permission of the publisher. Designations used by companies to distinguish their products are often claimed as trademarks. All brand names and product names used in this book are trade names, service marks, trademarks or registered trademarks of their respective owners. The publisher is not associated with any product or vendor mentioned in this book. It is sold on the understanding that the publisher is not engaged in rendering professional services. If professional advice or other expert assistance is required, the services of a competent professional should be sought. The contents of this work are intended to further general scientifi c research, understanding, and discussion only and are not intended and should not be relied upon as recommending or promoting a specifi c method, diagnosis, or treatment by health science practitioners for any particular patient. The publisher and the author make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifi cally disclaim all warranties, including without limitation any implied warranties of fi tness for a particular purpose. In view of ongoing research, equipment modifi cations, changes in governmental regulations, and the constant fl ow of information relating to the use of medicines, equipment, and devices, the reader is urged to review and evaluate the information provided in the package insert or instructions for each medicine, equipment, or device for, among other things, any changes in the instructions or indication of usage and for added warnings and precautions. Readers should consult with a specialist where appropriate. The fact that an organization or Website is referred to in this work as a citation and/or a potential source of further information does not mean that the author or the publisher endorses the information the organization or Website may provide or recommendations it may make. Further, readers should be aware that Internet Websites listed in this work may have changed or disappeared between when this work was written and when it is read. No warranty may be created or extended by any promotional statements for this work. Neither the publisher nor the author shall be liable for any damages arising herefrom. A catalogue record for this book is available from the Library of Congress and the British Library. ISBN: 9781118741825 Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books. Main cover image: with permission from The Ohio State University Set in 9/12pt Meridien LT Std by Aptara Inc., New Delhi, India 1 2016 Contents 1 Introduction, 1 Reasons to provide regional anesthesia, 2 History of regional anesthesia/analgesia, 3 Principles of the major techniques, 3 Local anesthetic drugs, 4 Additives to local anesthetics, 6 Equipment, 7 Syringes, 7 Needles, 7 Epidural catheter kits, 8 Nerve locators, 8 Differential pressure transducer, 9 Acoustic device, 9 Complications and contraindications, 9 Local, 10 Systemic, 10 Species differences and considerations, 10 Safe practice, 11 Gaining confi dence, 11 Making a plan, 11 References, 11 Further reading, 12 2 Cutaneous Innervation Index, 13 Cutaneous innervation index, 14 Canine dermatomes Body, 14 Head, 15 Thoracic limb, 16 Pelvic limb, 18 v vi Contents 3 Infi ltration Blocks, 21 Infi ltration for mass removal, 22 Line and ring blocks, 22 Inverted “L” block, 24 Block of the surgical incision, 26 Single injection of the surgical incision , 26 Diffusion catheter/“soaker” catheter/“pain buster”, 28 Intercostal blocks, 30 Interpleural block (also known as intrapleural or pleural), 32 Intraperitoneal block, 34 References, 35 4 Blocks of the Head, 37 Retrobulbar, 38 Maxillary, 40 Infraorbital, 42 Mandibular (or inferior alveolar), 44 Mental (or middle mental), 46 Auriculotemporal and great auricular, 48 References, 52 5 Regional Anesthetic Blocks of the Limbs, 53 Thoracic limb regional anesthetic blocks, 54 Brachial plexus, 56 Paravertebral: C6–T1, 58 RUMM (radial/ulnar/median/musculocutaneous), 60 Bier block (intravenous regional anesthesia), 62 Pelvic limb, 64 Femoral/saphenous nerve block, 66 Sciatic nerve block, 70 References, 74 6 Epidurals and Spinals, 75 Lumbosacral epidural and spinal in dogs, 76 Lumbosacral epidural in cats, 78 Caudal epidural in dogs and cats, 80 References, 82 7 Emergency Procedures, 83 Complications associated with local anesthetic techniques, 84 Bleeding, 84 Nerve trauma, 84 Contents vii Complications associated with local anesthetic drugs, 84 Allergic reactions to local anesthetic drugs, 84 Methemoglobinemia, 85 Systemic toxicity of local anesthetics, 85 Cardiovascular toxicity, 85 References, 88 Further reading, 88 Index, 89
Description: